<?php
$filename = 'downloads/'.$_GET[file];
$filename = realpath($filename);$file_extension = strtolower(substr(strrchr($filename,"."),1));
switch ($file_extension) {    case "pdf": $ctype="application/pdf"; break;    case "exe": $ctype="application/octet-stream"; break;    case "zip": $ctype="application/zip"; break;    case "doc": $ctype="application/msword"; break;    case "xls": $ctype="application/vnd.ms-excel"; break;    case "csv": $ctype="application/vnd.ms-excel"; break;    case "ppt": $ctype="application/vnd.ms-powerpoint"; break;    case "gif": $ctype="image/gif"; break;    case "png": $ctype="image/png"; break;    case "jpe": case "jpeg":    case "jpg": $ctype="image/jpg"; break;    default: $ctype="application/force-download";}
if (!file_exists($filename)) {	//echo $filename;    //die("NO FILE HERE");}
header("Pragma: public");header("Expires: 0");header("Cache-Control: must-revalidate, post-check=0, pre-check=0");header("Cache-Control: private",false);header("Content-Type: $ctype");header("Content-Disposition: attachment; filename=\"".basename($filename)."\";");header("Content-Transfer-Encoding: binary");header("Content-Length: ".@filesize($filename));set_time_limit(0);@readfile("$filename") or die("File not found.");
?>